The intense galactic X-ray source GX 349+2 belongs to the class
of persistently bright low mass X-ray binaries called Z-sources.
Of the six known Z-sources, only two (\mboxSco X-1 and Cyg X-2) have
been studied in the optical. It has been suggested that Z-sources as a group
are characterized by evolved companions and correspondingly long orbital
periods (Sco X-1, P=0.8 d; Cyg X-2, P=9.8 d).
GX 349+2 has only recently been optically identified with a 19th magnitude
star.
We previously reported on photometric evidence for a 22 h period.
Additional observations obtained on 6 consecutive nights in July 1996
confirm this period and refine its value to 22.4 h.

X1608-52 is one of only a few recurrent soft X-ray transients which exhibit
persistent
X-ray emission between outbursts.
Observations of the field
after the recent X-ray
outburst (IAUC 6331, 6336) show that the faint optical counterpart
QX Nor last seen in 1977 has reappeared.
Data from May-July 1996, 3-5 months after the outburst,
show the counterpart at
about R=19.9 and variable on timescales of days.
A comparison to identical observations last year
shows
that the object has brightened by at least 2 mag in R.
We also detected QX Nor in the IR in BOTH
quiescence and outburst. A faint source is visible at J but not R in
May 1995.
J frames obtained in August 1996 show the star
brighter by about 0.8 mag (J\approx 17).

GX 13+1 is a bright X-ray burst source, located in the galactic bulge.
Due to the heavy obscuration in the galactic center direction,
no optical counterpart brighter than R\sim 22 mag has been detected,
although recently a K=12
IR counterpart was found.
Our previous
photometry suggests variability of \sim0.4 mag on a timescale of several
days. Results of a recent
photometric
monitoring program will be presented.